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Firefox rolls out Total Cookie Protection by default to all users

blog.mozilla.org

151–160 of 339 posts

Re: Firefox rolls out Total Cookie Protection by default to all users

#151
post #62

Does someone have a link about the technical details for developers that it might affect (SSO, cookies for subdomains, etc). This is just a marketing post.

Also keen to see something like this. Firefox surely (hopefully!!) isn't going to block cookies across subdomains, or a whole bunch of things are going to break. Would love to see confirmation though...

Re: Firefox rolls out Total Cookie Protection by default to all users

#152
post #146

Earlier quoted context omitted.

There are legit cross-domain use cases. A good example is how someone here mentioned (comment seems deleted though) account sessions being shared between Atlassian products like JIRA and BitBucket. The problem with that is domains are a poor way of representing ownership that can be trusted. If the web was rebuilt from scratch, a better approach might be to allow cookies to be shared between secure sites using the sa…

> allow cookies to be shared between secure sites using the same certificate Or maybe encrypting cookies using the site certificate, which would still allow cookies to be shared with domains having a different certificate, but the server needs the correct key for decryption.

Ciphertext leaks information via its size and its presence / absence.

Re: Firefox rolls out Total Cookie Protection by default to all users

#153

Is this better or worse than Safari's "Prevent cross-site tracking" feature? https://support.apple.com/guide/safari/prevent-cross-site-tr... It appears Safari is just blocking the cookies, while Firefox is isolating the cookies. I guess Safari has to keep track of who to block while Firefox just isolates everybody. Are there other benefits to the Firefox approach? Frankly, I have a hard time understanding why this Co…

I believe this is part of the "Prevent cross-site tracking" feature. I do know that Webkit/Safari has had this feature for a while now, under the name "Partitioned storage." Safari has a handful of other policies under the "Intelligent Tracking Prevention" banner, like blocked or ephemeral cookies for non-first-party domains.

Firefox is playing catch-up with this feature. The announcement says "...making Firefox the most private and secure major browser available across Windows and Mac." Note the part that I've emphasized.

Re: Firefox rolls out Total Cookie Protection by default to all users

#154

Why weren't separate cookie jars the default in the first place? I know that browsers other than Firefox have no real incentive to protect your privacy, but I'm wondering why cookies were designed to be shared among different pages in general

There are legit cross-domain use cases. A good example is how someone here mentioned (comment seems deleted though) account sessions being shared between Atlassian products like JIRA and BitBucket. The problem with that is domains are a poor way of representing ownership that can be trusted. If the web was rebuilt from scratch, a better approach might be to allow cookies to be shared between secure sites using the sa…

There’s no technical reason why this has to be hard. If jira was at jira.atlassian.com and bitbucket was bitbucket.atlassian.com, they would have the same origin, plus they would make the relationship between them visible to any moderately savvy user. It’s only complicated because they allow their marketing dept to make it complicated.

Re: Firefox rolls out Total Cookie Protection by default to all users

#155
I know Firefox has a small market share, but this is the sort of feature other browsers may adopt. Maybe not the big boys like Chrome or Edge, but I could see all the niche privacy focused browsers implementing it and maybe even Safari given Apples claims to support user privacy. If a certain percentage of browsers started to use similar functionality I could tracking companies starting to develop countermeasures.

In fact I've already encountered one site that gave me a popup telling me to enable third party cookies. It was one of those dodgy sites that scrapes and copies Stack Overflow content and the JavaScript that enabled it was very clunky - but it worked. I'm surprised there aren't more websites already doing something similar.

Re: Firefox rolls out Total Cookie Protection by default to all users

#156
post #115

Earlier quoted context omitted.

Surprised it's even that high, I tried to switch to Firefox the other month for privacy but gave up because it crashed on me it-least once a day. Edit: thanks for the downvotes, I would have preferred if it worked but it didn't. I tried basic troubleshooting, disabling extensions etc. but didn't find it usable on macOs Monterey, think it doesn't play well with youtube.

I have used Firefox for 7 years and never had it crash once.

I used it for a similar time if not longer and I think it crashed Extremely stable compared to almost any other software. Perhaps the parent means the mobile version. If not I would expect something is wrong with the system, even if visiting the worst pages of the internet.

Re: Firefox rolls out Total Cookie Protection by default to all users

#157

Why weren't separate cookie jars the default in the first place? I know that browsers other than Firefox have no real incentive to protect your privacy, but I'm wondering why cookies were designed to be shared among different pages in general

There are legit cross-domain use cases. A good example is how someone here mentioned (comment seems deleted though) account sessions being shared between Atlassian products like JIRA and BitBucket. The problem with that is domains are a poor way of representing ownership that can be trusted. If the web was rebuilt from scratch, a better approach might be to allow cookies to be shared between secure sites using the sa…

Isn't this solved with a login redirect? Just return a signed ID and set up cookies on the other end with that. Granted, it's one more redirect per domain than before per login period, but that's hardly onerous.

Domains that want to collaborate together can still do so.

Re: Firefox rolls out Total Cookie Protection by default to all users

#158

Earlier quoted context omitted.

There are legit cross-domain use cases. A good example is how someone here mentioned (comment seems deleted though) account sessions being shared between Atlassian products like JIRA and BitBucket. The problem with that is domains are a poor way of representing ownership that can be trusted. If the web was rebuilt from scratch, a better approach might be to allow cookies to be shared between secure sites using the sa…

There’s no technical reason why this has to be hard. If jira was at jira.atlassian.com and bitbucket was bitbucket.atlassian.com, they would have the same origin, plus they would make the relationship between them visible to any moderately savvy user. It’s only complicated because they allow their marketing dept to make it complicated.

You do realize acquisitions occur?

Re: Firefox rolls out Total Cookie Protection by default to all users

#159

It would be nice to allow users to create "trusted tuples" to list small groups of domains that are allowed to share their cookies. For instance: Zendesk, Asana, Jira, etc. But have each tuple listed still be isolated from the other, only domains listed together in a single list could share a cookie container.

Probably that is the use-case for the official multi-account containers plugin.

Re: Firefox rolls out Total Cookie Protection by default to all users

#160

This will only further entrench the big players (google, facebook, etc) while making it impossible for new & small players to compete. All of the services the big players offer effectively make working without universal cookies trivial. For the small players though, without massive ad-supported service offerings like Gmail, Facebook (as a platform), etc, this will screw them completely. Mind you, I'm a HUGE privacy a…

Firefox really needs to implement two features: 1. Cookie Auto-Delete (see https://github.com/Cookie-AutoDelete/Cookie-AutoDelete/wiki/... ), where cookies and local data are automatically deleted some time after closing the tab. You can, of course, whitelist Websites to exclude them. 2. Firefox multi-container extension, to assign some websites (domains and subdomains) to a container by default so that you can visit…

(1) totally exists, that's always how I configure all my FF installs. You also can add exceptions, although I don't use this feature.
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